CN113431955B

CN113431955B - Protection valve at gas pipeline terminal

Info

Publication number: CN113431955B
Application number: CN202110984898.0A
Authority: CN
Inventors: 钱琪升
Original assignee: Qidong Yong'an Valve Co ltd
Current assignee: Qidong Yong'an Valve Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2021-11-09
Anticipated expiration: 2041-08-26
Also published as: CN113431955A

Abstract

The invention relates to the field of valves, and particularly discloses a protective valve for a gas pipeline terminal, which comprises a valve body and a pipeline joint integrally connected with two ends of the valve body, wherein an outer ring plate is sleeved on the outer wall of the pipeline joint, one end of the outer ring plate, which is far away from the valve body, is connected with a sealing sleeve, the other end of the sealing sleeve is provided with a lantern ring, and the outer wall of the sealing sleeve is also provided with a gas leakage alarm. First shutoff cover and second shutoff cover are all propped open by the pipeline, and first shutoff cover and second shutoff cover can carry out double seal to the junction of pipe joint and service pipe or internal pipeline for the difficult gas that takes place of junction is revealed. Even if the leakage happens, the fuel gas can only stay in the sealing sleeve and cannot float outwards, so that the fuel gas is ensured not to leak at the installation position of the valve body, and the safety of the valve body in use is improved.

Description

Protection valve at gas pipeline terminal

Technical Field

The invention relates to a valve, in particular to a protective valve for a gas pipeline terminal, and belongs to the field of valves.

Background

The gas valve is a novel safety matching device for gas pipeline engineering. The gas valve is used for cutting off, connecting and regulating gas in a pipeline, and has good control characteristics and closing sealing performance. It is suitable for various gas medium pipelines such as city gas, liquefied petroleum gas, natural gas and oxygen.

In order to ensure that the gas kitchen is safer to use, a gas valve is arranged at the terminal of a gas pipeline in the kitchen and is used for opening and closing the gas pipeline, so that the gas kitchen is safer to use. The existing gas valve does not have self-protection capability after leakage occurs in use, and cannot send out an alarm signal in time, so that a user cannot find out the leakage in time, and accidents are easily caused. After leakage occurs, gas is easy to gather, gas exchange cannot be carried out in time, the concentration of the gas is reduced, and gas leakage accidents are easy to occur.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a protection valve for a gas pipeline terminal.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a protection valve at gas pipeline terminal, includes the valve body to and the pipe joint of valve body both ends body coupling, the outer wall cover of pipe joint is equipped with outer annular plate, and the one end that the valve body was kept away from to outer annular plate is connected with the seal cover, and the lantern ring is installed to the other end of seal cover, and the gas leakage alarm is still installed to the outer wall of seal cover.

The lantern ring is connected with first shutoff cover and second shutoff cover respectively towards the one end of valve body, and the inside at first shutoff cover is adorned to second shutoff cover suit, installs a plurality of springs between the inner wall of first shutoff cover and the outer wall of second shutoff cover, and still is provided with the water storage chamber in the inner wall of second shutoff cover.

Optionally, the diameters of the first plugging sleeve and the second plugging sleeve are gradually reduced towards one end of the valve body, and the first plugging sleeve and the second plugging sleeve are made of rubber.

Optionally, the sealing sleeve is made of sealing cloth, fireproof coatings are coated on the inner wall and the outer wall of the sealing cloth, and the outer wall of the sleeve ring is connected with a plurality of first fastening screws.

Optionally, a fixing rod is connected to the bottom of the valve body, the lower part of the fixing rod is rotatably mounted inside the mounting frame through an adjusting bolt, and a support is mounted on one side of the mounting frame.

Optionally, the support is in an "L" shape, a plurality of fixing holes are formed in the vertical end of the support, a movable end plate is connected to the horizontal end of the support towards one end of the mounting frame, and one end of the end plate is fixedly connected with one side of the lower portion of the mounting frame.

Optionally, the other end of the end plate is connected with two insertion rods, the insertion rods are inserted into the horizontal end of the support, the two sides of the horizontal end of the support are both connected with second fastening screws, and one ends of the second fastening screws extend to the inner part of the horizontal end of the support and abut against the outer walls of the insertion rods.

Optionally, the air discharge fan is still installed to one side of valve body, and the air discharge fan passes through a plurality of fixing bolt and valve body fixed mounting, and air discharge fan one side horizontally connect towards the valve body has a plurality of gag lever posts, the one end of gag lever post and the outer wall butt of valve body.

Optionally, a start-stop switch for controlling the operation of the exhaust fan is installed on one side, facing the outer ring plate, of the outside of the valve body, and an air bag column is connected to one side, facing the start-stop switch, of the outer ring plate, and the start-stop switch can be pressed after the air bag column is unfolded.

The invention has the beneficial effects that:

1. through setting up the support for the position of valve body can be free adjusts, adapts to the demand of different space installations, and valve body installation convenient and fast more, and the regulation of being convenient for in the installation. The valve body installation is supported fixedly by the support, and when the valve is closed and opened, the pipeline joint is not easy to shake, so that the joint is more stable, and the sealing performance is not easy to damage.

2. Through setting up first shutoff cover and second shutoff cover for the valve body installation back, first shutoff cover and second shutoff cover all are propped open by the pipeline, and first shutoff cover and second shutoff cover can carry out double seal to the junction of pipe joint and service pipe or internal pipeline, make the difficult gas that takes place of junction reveal. Even if the leakage happens, the fuel gas can only stay in the sealing sleeve and cannot float outwards, so that the fuel gas is ensured not to leak at the installation position of the valve body, and the safety of the valve body in use is improved.

And when the first plugging sleeve and the second plugging sleeve are unfolded, the pressure applied to the spring is increased, so that the double sealing performance of the first plugging sleeve and the second plugging sleeve is better. The inside water storage chamber of second shutoff cover can with the inseparable contact of pipeline outer wall, in case there is the flame to appear in the outside, at first burns second shutoff cover, and the inside cooling water ability in water storage chamber absorbs partly heat for second shutoff cover is not fragile. After the second plugging sleeve is burnt and damaged, cooling water in the water storage cavity can cover the flame, so that the flame can be extinguished or reduced, and the spread speed of the flame can be reduced as much as possible. The flame is prevented from firing the pipeline joint, so that the joint is safer.

3. Through setting up air discharge fan and gas leakage alarm for in the use of valve body, pipeline connection department takes place to reveal the back, and gas leakage alarm sends alarm signal, reminds the user to carry out timely maintenance, avoids meeting accident, reduces the loss that the gas leaked and causes. After the gas leaks, the gas bag column is extruded and unfolded, then one end of the gas bag column presses the start-stop switch, and the exhaust fan works. The exhaust fan works before the fuel gas is not leaked from the inside of the sealing sleeve, and preparation is performed in advance. Make the inside gas volume of seal cover too much to the external emission after, the gas fan can be timely arrange the gas to external environment in, reduce the concentration of gas around the valve body, and then reduced the probability that the accident takes place, protect in using the valve body, promote the security performance in kitchen simultaneously.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the valve body of the present invention.

Fig. 3 is a schematic view of the installation structure of the first plugging sleeve and the sleeve ring.

FIG. 4 is a schematic view of the internal structure of the first occlusion cuff of the present invention.

FIG. 5 is a schematic view of the stent structure of the present invention.

FIG. 6 is a schematic view of an exhaust fan according to the present invention.

In the figure: 1. a valve body; 2. an exhaust fan; 3. a pipe joint; 4. fixing the rod; 5. a support; 6. a mounting frame; 7. an outer ring plate; 8. sealing sleeves; 9. a collar; 10. a gas leakage alarm; 11. an air bag column; 12. a start-stop switch; 13. a first plugging sleeve; 14. a water storage cavity; 15. a second plugging sleeve; 16. a spring; 17. inserting a rod; 18. an end plate; 19. a limiting rod; 20. a first fastening screw; 21. and a second fastening screw.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a protection valve for a gas pipeline terminal comprises a valve body 1 and a pipeline joint 3 integrally connected with two ends of the valve body 1, wherein an outer ring plate 7 is sleeved on the outer wall of the pipeline joint 3, a sealing sleeve 8 is connected to one end of the outer ring plate 7 far away from the valve body 1, a lantern ring 9 is installed at the other end of the sealing sleeve 8, and a gas leakage alarm 10 is also installed on the outer wall of the sealing sleeve 8.

The lantern ring 9 is connected with first shutoff cover 13 and second shutoff cover 15 respectively towards the one end of valve body 1, and the inside at first shutoff cover 13 is overlapped to second shutoff cover 15, installs a plurality of springs 16 between the inner wall of first shutoff cover 13 and the outer wall of second shutoff cover 15, and still is provided with water storage chamber 14 in the inner wall of second shutoff cover 15.

As a technical optimization scheme of the invention, the diameters of the first plugging sleeve 13 and the second plugging sleeve 15 are gradually reduced towards one end of the valve body 1, the first plugging sleeve 13 and the second plugging sleeve 15 are made of rubber materials, and the first plugging sleeve 13 and the second plugging sleeve 15 have double sealing functions, so that the valve body 1 is safer in use.

As a technical optimization scheme of the invention, the sealing sleeve 8 is made of sealing cloth, the inner wall and the outer wall of the sealing cloth are coated with fireproof coatings, the outer wall of the lantern ring 9 is connected with a plurality of first fastening screws 20, and the sealing sleeve 8 is not easy to burn in use and can ensure the safety in use.

As a technical optimization scheme of the invention, the bottom of the valve body 1 is connected with the fixed rod 4, the lower part of the fixed rod 4 is rotatably installed in the installation frame 6 through the adjusting bolt, the support 5 is installed on one side of the installation frame 6, the support 5 and the installation frame 6 facilitate the installation of the valve body 1, and the angle adjustment of the valve body 1 is convenient and rapid.

As a technical optimization scheme of the invention, the support 5 is arranged in an L shape, a plurality of fixing holes are formed in the vertical end of the support 5, one end, facing the mounting frame 6, of the horizontal end of the support 5 is connected with a movable end plate 18, one end of the end plate 18 is fixedly connected with one side below the mounting frame 6, and the distance between the support 5 and the mounting frame 6 can be adjusted through the inserted rod 17 so as to adapt to different use requirements.

As a technical optimization scheme of the invention, the other end of the end plate 18 is connected with two insertion rods 17, the insertion rods 17 are inserted into the horizontal end of the bracket 5, two sides of the horizontal end of the bracket 5 are both connected with second fastening screws 21, and one end of each second fastening screw 21 extends to the inside of the horizontal end of the bracket 5 and is abutted against the outer wall of the insertion rod 17.

As a technical optimization scheme of the invention, an exhaust fan 2 is further installed on one side of a valve body 1, the exhaust fan 2 is fixedly installed with the valve body 1 through a plurality of fixing bolts, a plurality of limiting rods 19 are horizontally connected to one side, facing the valve body 1, of the exhaust fan 2, one end of each limiting rod 19 is abutted to the outer wall of the valve body 1, and the limiting rods 19 can prevent one side of the exhaust fan 2 from being in close contact with the valve body 1, so that subsequent exhaust is smoother, and the exhaust capacity is better.

As a technical optimization scheme of the invention, a start-stop switch 12 for controlling the exhaust fan 2 to work is arranged on one side of the outer annular plate 7 facing the outer annular plate 1, an air bag column 11 is connected to one side of the outer annular plate 7 facing the start-stop switch 12, the start-stop switch 12 can be pressed after the air bag column 11 is unfolded, the air pressure in the sealing sleeve 8 is increased, the air bag column 11 is extruded and unfolded, and then one end of the air bag column 11 presses the start-stop switch 12, so that the exhaust fan 2 works.

When the household gas pipeline is used, the pipeline joint 3 at one end of the valve body 1 is connected and installed with the end part of a gas pipeline in a kitchen, and the pipeline joint 3 at the other end is connected and installed with the end part of a household gas pipeline. After the pipeline joint 3 is connected with a service pipeline or an internal pipeline, the lantern ring 9 is pushed to be away from the valve body 1, and then the lantern ring 9 is sleeved on the outer wall of the service pipeline or the internal pipeline.

Then, the support 5 and an external object are fixedly installed, and the adjusting screw is screwed to adjust the position of the valve body 1, so that the valve body 1 can meet the requirements of installation in different spaces, the valve body 1 is more convenient and rapid to install, and the valve body is convenient to adjust in installation. The installation of valve body 1 receives support 5 fixed, when closing and opening the valve, is difficult for causing the pipeline junction to rock for the junction is more stable, and sealing performance is difficult for receiving destruction, ensures exhaust fan 2 towards outside during the installation of valve body 1.

After the lantern ring 9 position is confirmed, screw up the outer wall butt of first fastening screw 20 and pipeline, and then make the difficult change in position of lantern ring 9, first shutoff cover 13 and second shutoff cover 15 are all propped open by the pipeline, and first shutoff cover 13 and second shutoff cover 15 can carry out double sealing to the junction of pipe joint 3 and house-entering pipeline or inside pipeline for the difficult gas that takes place of junction is revealed. Even if leakage occurs, the fuel gas can only stay in the sealing sleeve 8 and cannot float outwards, so that the fuel gas cannot be leaked at the mounting position of the valve body 1, and the safety of the valve body 1 in use is improved.

While the first blocking sleeve 13 and the second blocking sleeve 15 are expanded, the spring 16 is compressed, so that the second blocking sleeve 15 can be tightly attached to the outer wall of the pipeline. Because the spring 16 is installed at the inner end of the first plugging sleeve 13, when the first plugging sleeve 13 and the second plugging sleeve 15 are both expanded by external force, the pressure applied to the spring 16 is increased, so that the double sealing performance of the first plugging sleeve 13 and the second plugging sleeve 15 is better. The inside water storage chamber 14 of second shutoff cover 15 can with the inseparable contact of pipeline outer wall, in case there is the flame to appear in the outside, at first burns second shutoff cover 15, and the inside cooling hydroenergy in water storage chamber 14 absorbs partly heat for second shutoff cover 15 is not fragile. After the second plugging sleeve 15 is burned and damaged, the cooling water in the water storage cavity 14 can cover the fire, so that the fire can be extinguished or reduced, and the spreading speed of the fire can be reduced as much as possible. The flame is prevented from firing the pipeline joint 3, so that the joint is safer.

When the valve body 1 is used, after the pipeline joint is leaked, the fuel gas is stored in the sealing sleeve 8 and cannot be emitted to the outside. After the gas concentration inside the sealing sleeve 8 reaches a preset value, the gas leakage alarm 10 with the model of VDO-2008dip sends an alarm signal to remind a user of timely overhauling and maintaining, accidents are avoided, and loss caused by gas leakage is reduced. If the user fails timely maintenance, the inside gas volume of seal cover 8 is more and more for 8 inside atmospheric pressure of seal covers are bigger and bigger, with 11 extrusion expandes of gasbag post, and then 11 one end of gasbag post is pressed start-stop switch 12, and exhaust fan 2 carries out work. The exhaust fan 2 is operated before the gas is not leaked from the inside of the seal cover 8, and is prepared in advance. Make the inside gas volume of seal cover 8 too much to the external emission after, exhaust fan 2 can be timely with the gas discharge to external environment in, reduce the concentration of gas around the valve body 1, and then reduced the probability that the accident takes place, protect in using valve body 1, promote the security performance in kitchen simultaneously. After the dangerous case is eliminated, the exhaust fan 2 can be closed by pressing the start-stop switch 12 again. The inside of the exhaust fan 2 is provided with a battery, and the battery is used for providing energy.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The protection valve for the gas pipeline terminal comprises a valve body (1) and a pipeline joint (3) integrally connected with two ends of the valve body (1), and is characterized in that an outer ring plate (7) is sleeved on the outer wall of the pipeline joint (3), one end, far away from the valve body (1), of the outer ring plate (7) is connected with a sealing sleeve (8), the other end of the sealing sleeve (8) is provided with a lantern ring (9), and the outer wall of the sealing sleeve (8) is further provided with a gas leakage alarm (10);

the lantern ring (9) is connected with first shutoff cover (13) and second shutoff cover (15) respectively towards the one end of valve body (1), and second shutoff cover (15) suit is in the inside of first shutoff cover (13), installs a plurality of springs (16) between the inner wall of first shutoff cover (13) and the outer wall of second shutoff cover (15), and still is provided with water storage chamber (14) in the inner wall of second shutoff cover (15).

2. The protection valve of a gas pipeline terminal according to claim 1, characterized in that the diameters of the first plugging sleeve (13) and the second plugging sleeve (15) are gradually reduced towards one end of the valve body (1), and the first plugging sleeve (13) and the second plugging sleeve (15) are made of rubber.

3. The protection valve of a gas pipeline terminal as claimed in claim 2, wherein the sealing sleeve (8) is a sealing cloth, the inner and outer walls of the sealing cloth are coated with fireproof coatings, and the outer wall of the sleeve ring (9) is connected with a plurality of first fastening screws (20).

4. The protection valve of a gas pipeline terminal according to claim 1, wherein a fixing rod (4) is connected to the bottom of the valve body (1), the lower part of the fixing rod (4) is rotatably installed inside the mounting frame (6) through an adjusting bolt, and a bracket (5) is installed on one side of the mounting frame (6).

5. The protection valve of a gas pipeline terminal, according to claim 4, characterized in that, the support (5) is provided in an "L" shape, a plurality of fixing holes are provided inside the vertical end of the support (5), one end of the horizontal end of the support (5) facing the mounting rack (6) is connected with a movable end plate (18), and one end of the end plate (18) is fixedly connected with one side below the mounting rack (6).

6. The protection valve of a gas pipeline terminal according to claim 5, wherein the other end of the end plate (18) is connected with two insertion rods (17), the insertion rods (17) are inserted into the horizontal end of the bracket (5), the two sides of the horizontal end of the bracket (5) are connected with second fastening screws (21), and one ends of the second fastening screws (21) extend to the inside of the horizontal end of the bracket (5) and are abutted against the outer wall of the insertion rods (17).

7. The protection valve of a gas pipeline terminal according to claim 1, characterized in that an exhaust fan (2) is further installed on one side of the valve body (1), the exhaust fan (2) is fixedly installed with the valve body (1) through a plurality of fixing bolts, a plurality of limiting rods (19) are horizontally connected to one side of the exhaust fan (2) facing the valve body (1), and one end of each limiting rod (19) is abutted to the outer wall of the valve body (1).

8. The protection valve of a gas pipeline terminal according to claim 7, wherein a start-stop switch (12) for controlling the operation of the exhaust fan (2) is installed on one side of the outer ring plate (7) facing the outside of the valve body (1), an air bag column (11) is connected to one side of the outer ring plate (7) facing the start-stop switch (12), and the start-stop switch (12) can be pressed after the air bag column (11) is unfolded.